I took over a family business and the guys who work at the shop want a laminator. They have been doing lamination by hand so far. I want to get a laminator but wanna get some suggestions and pro/con/issues that people have. Im mainly looking at 54/55in cold laminators. Looked at Seal 54EL, Royal Sovereign RSC-1401CW and USTECH Pro 55C. Any experience with those models or at least with the brands? How useful is heat assist? Should I spend little extra for heat assist? Thanks